public static bool Equal( Row r1, Row r2 )
{
return ( r1.Pegs == r2.Pegs ) && ( r1.Pegs == 0 || r1.Color == r2.Color );
}
private static void Sub( Row rowFrom, Row rowTo )
{
rowTo.Color = ( rowTo.Pegs > rowFrom.Pegs ? rowTo.Color : rowFrom.Color );
rowTo.Pegs = Math.Abs( rowFrom.Pegs - rowTo.Pegs );
rowFrom.Pegs = 0;
}
private static void Swap( Row rowFrom, Row rowTo )
{
Color colorFrom = rowFrom.Color;
Color colorTo = rowTo.Color;
int pegsFrom = rowFrom.Pegs;
int pegsTo = rowTo.Pegs;
rowFrom.Color = colorTo;
rowTo.Color = colorFrom;
rowFrom.Pegs = pegsTo;
rowTo.Pegs = pegsFrom;
}
private static void DoMoveUp( Row rowFrom, Row rowTo )
{
if ( rowFrom.IsEmpty )
return;
if ( rowTo.IsBar )
{
if ( rowFrom.IsBar )
ChangeColor( rowFrom, rowTo );
}
else if ( rowTo.IsEmpty )
{
if ( rowFrom.IsEven )
Split( rowFrom, rowTo );
}
else if ( rowFrom.IsBar )
{
Swap( rowFrom, rowTo );
}
else
{
Add( rowFrom, rowTo );
}
}
private static void Split( Row rowFrom, Row rowTo )
{
rowTo.Pegs = rowFrom.Pegs / 2;
rowFrom.Pegs = rowTo.Pegs;
rowFrom.Color = NextColor( rowFrom.Color );
rowTo.Color = NextColor( rowFrom.Color );
}
private static void ChangeColor( Row rowFrom, Row rowTo )
{
rowTo.Color = NextColor( rowFrom.Color, rowTo.Color );
}
private static void DoMoveDown( Row rowFrom, Row rowTo )
{
if ( rowFrom.IsEmpty )
return;
if ( rowTo.IsEmpty )
{
if ( rowFrom.IsEven )
Split( rowFrom, rowTo );
}
else
{
Sub( rowFrom, rowTo );
}
}
private static void Add( Row rowFrom, Row rowTo )
{
Color colorFrom, colorTo;
int totalPegs, restPegs;
if ( rowFrom.Pegs == rowTo.Pegs )
{
colorTo = NextColor( rowFrom.Color, rowTo.Color );
colorFrom = rowTo.Color;
}
else if ( rowFrom.Pegs > rowTo.Pegs )
{
colorTo = rowFrom.Color;
colorFrom = rowTo.Color;
}
else
{
colorTo = rowTo.Color;
colorFrom = rowFrom.Color;
}
totalPegs = rowFrom.Pegs + rowTo.Pegs;
restPegs = Math.Max( totalPegs - 4, 0 );
totalPegs = Math.Min( totalPegs, 4 );
rowTo.Color = colorTo;
rowTo.Pegs = totalPegs;
rowFrom.Color = colorFrom;
rowFrom.Pegs = restPegs;
}
public Panel Clone()
{
Row[] rows = new Row[m_Rows.Length];
for ( int i = 0; i < m_Rows.Length; i++ )
rows[i] = m_Rows[i].Clone();
return new Panel( rows );
}
public Panel( Row[] rows )
{
m_Rows = rows;
}
private int GetGraphic( Row row )
{
bool bar = row.IsBar;
switch ( row.Color )
{
default:
case Color.Red: return bar ? 0x2A58 : 0x2A62;
case Color.Green: return bar ? 0x2A44 : 0x2A4E;
case Color.Blue: return bar ? 0x2A30 : 0x2A3A;
}
}
private void DrawRow( Row row, int xBase, int yBase )
{
int graphic = GetGraphic( row );
switch ( row.Pegs )
{
default:
case 0:
break;
case 1: // 1 peg
AddImage( xBase + 40, yBase, graphic );
break;
case 2: // 2 pegs
AddImage( xBase + 2, yBase, graphic );
AddImage( xBase + 80, yBase, graphic );
break;
case 3: // 3 pegs
AddImage( xBase + 2, yBase, graphic );
AddImage( xBase + 40, yBase, graphic );
AddImage( xBase + 80, yBase, graphic );
break;
case 4: // bar
AddImage( xBase + 1, yBase, graphic );
break;
}
}